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A stationary 40 kN single axle load (applied on a circular contact area of radius = 152 mm = 6") is applied to each of the flexible pavement structures indicated below. Assuming linear elastic behaviour and no edge effects, use KENLAYER to determine for the two pavement systems given below:a. Total maximum surface deflection of the pavement system; b. Horizontal strain at the bottom of the HMA layer; and, c. Vertical stress on the top of the subgrade.
Pavement systems:
i) 150 mm of HMA with 3,500 MPa modulus; placed directly on a sandy subgrade with 75 MPamodulus.
ii) 75 mm of HMA with 3,900 MPa; 200 mm of granular base with 150 MPa modulus; and clay subgrade with 40 MPa modulus.
Types of Limes and their Properties The limes are classified in three categories as fat lime, hydraulic lime and poor lime: (1) Fat lime: It is composed of 95 percentage o
Define the term - post-tensioned concret In the Prescon and B.B.R.V. systems button heads are created at the ends of tendons. In the case of Prescon system, 2 to 130 tendon wir
A city is trying to decide which of two traffic devices to install. Device A costs $1000 and has useful life of five years. Device A can be expected to result in $300 savings annu
#ques5. A rectangular channel is 3 m in width and draws water from a lake. The channel slope is 0.001 and the Manning’s n is 0.0013. What will be the discharge in the channel when
Q. A pipe or groups of bars be adopted as load carrying element of min-piles? The design of mini-piles someway differs from other traditional pile types. For example the design
Use of Stone Aggregates in Road Construction Stone aggregates are extensively used in roads in pavement layers. They are obtained from natural rock. The following geological
Define Underwater Inspection of steel or cast iron structures? Underwater Inspection of steel/cast iron structures may be carried out as under: i. Start the inspection at sp
write a short note on angular messurement using stations?
Compute the safe bearing capacity of a square footing 1.5 m × 1.5 m, located at a depth of 1 m below the ground level in a soil of average density 20 kN/m 3 . = 20°, N c = 17.7,
what is meant by fly levelling and when it is carried out ?
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